Author Topic: 1965 B40F carb stud threads ? BSF CEI UNF ??  (Read 648 times)

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hoogerbooger

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1965 B40F carb stud threads ? BSF CEI UNF ??
« on: 11 May, 2018, 17:27:15 »
I ask as the Amal site tells me to use nyloc nuts with my Mk1 concentric... so I need to buy these.

On a web search I'm getting conflicting info on the thread.  I've tested with some other 5/16 bsf nuts I have it wouldn't appear to be a bsf thread.

Anyone know what it ought to be for a 1965 B40f ?

JulianS

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Re: 1965 B40F carb stud threads ? BSF CEI UNF ??
« Reply #1 on: 11 May, 2018, 19:27:17 »
Should be 5/16 x 26tpi cycle.